phylum mollusca 47000 speciesthe segmentation and
Phylum Mollusca (47,000 species)
The segmentation and coelom may not exist. Diversification through modifications of head, foot; mantle and 'radula for feeding. .Visceralorgans generally' protected 'by a' shell, the phylum includes seven classes.
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phylum coelentrata 9000 speciesthe body is radial and made up of two cell layers gastro-vascular cavity is saclike tentacles and stinging cells are
q evaluate dimensions of apron according to spring and galesdimensions of apron according to spring and gales gales and sethi favoured uniform
phylum platyhelminthes 13000 species flatwormthe body is flattened gastrovascular cavity is branched dense bodies with many cell layers mouth but no
q describe types of spursspurs can be of varied types they may be either permeable or impermeable permeable spurs are open structures constructed by
phylum mollusca 47000 speciesthe segmentation and coelom may not exist diversification through modifications of head foot mantle and radula for
phylum arthropoda 800000 to 1000000 speciesthey are known as jointed footed animals the appendages are paired and jointed with chitinous exoskeleton
q by which materials shank of a spur constructshank of a spur is constructed of sand core and its exposed faces are protected by stone pitching the
subphylum cheliceratasix pairs of appendages four pairs being legs with paired chelicerae fangs there are three classes in this
subphylum mandibulatamost of them have three pairs of walking legs mandibles compound eyes antennas some with wings there are four classescrustacea -
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